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Battenichi-chan

FAN

Battenichi-chan (ばってんいちちゃん) personifies Windows 8.1 in Shimuro's Futaba line. The name plays on 八点一 — 'eight point one.' Moeverse documents mentions from the 11th Futaba School Festival (27 April 2016). Black hair, orange or brown eyes. Anxious, especially around 8.1 end-of-support (10 January 2023).

Windows 8's CORP twins are Yū and Ai. They have SKUs, voice actresses, and Akihabara editions. Battenichi is the board sequel to Seven-chan. Nijikaku, a Futaba M.U.G.E.N. project, is cited as a later appearance. English coverage that only knows the Madobe twins will miss her entirely.

Windows 8 FAN OS-tan
Historical OSC archive. Art remains with the original artists.
8-tan
Historical OSC archive. Art remains with the original artists.
Battenichi identity plate
Identity plate

See also

Seven-chan identity plateSeven-chanSeven-chan is Futaba's Windows 7 OS-tan by Shimuro (2009). She is not Nanami Madobe.Yū and Ai MadobeYū MadobeYū Madobe is the short-haired Windows 8 Pro DSP twin, voiced by Asuka Nishi. CORP, not Battenichi-chan.Yū and Ai MadobeAi MadobeAi Madobe is the long-haired Windows 8 Pro DSP twin, voiced by Nao Tamura.11-chan identity plate11-chan11-chan is Shimuro's Windows 11 OS-tan (2022). She is not Ichika Madobe and not an official Microsoft character.

Sources

  1. Battenichi-chan — Moeverse Wiki, 2026.
  2. OS-tan — Moeverse Wiki, 2026. Best English source for Vault chronology, artist credits, and the Futaba / Madobe split.